basic authentication work

httpclient/src/test/java/org/baeldung/httpclient/HttpClientAuthLiveTest.java

@@ -5,18 +5,27 @@ import static org.junit.Assert.assertThat;
 
 import java.io.IOException;
 import java.io.InputStream;
+import java.nio.charset.Charset;
 
+import org.apache.commons.codec.binary.Base64;
 import org.apache.http.HttpEntity;
+import org.apache.http.HttpHeaders;
+import org.apache.http.HttpHost;
 import org.apache.http.HttpStatus;
 import org.apache.http.auth.AuthScope;
 import org.apache.http.auth.UsernamePasswordCredentials;
+import org.apache.http.client.AuthCache;
 import org.apache.http.client.ClientProtocolException;
 import org.apache.http.client.CredentialsProvider;
 import org.apache.http.client.methods.CloseableHttpResponse;
 import org.apache.http.client.methods.HttpGet;
+import org.apache.http.client.protocol.HttpClientContext;
+import org.apache.http.impl.auth.BasicScheme;
+import org.apache.http.impl.client.BasicAuthCache;
 import org.apache.http.impl.client.BasicCredentialsProvider;
 import org.apache.http.impl.client.CloseableHttpClient;
 import org.apache.http.impl.client.HttpClientBuilder;
+import org.apache.http.protocol.HttpContext;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
@@ -65,6 +74,42 @@ public class HttpClientAuthLiveTest {
         assertThat(statusCode, equalTo(HttpStatus.SC_OK));
     }
 
+    @Test
+    public final void givenAuthenticationIsPreemptive_whenExecutingBasicGetRequestWithBasicAuthenticationEnabled_thenSuccess() throws ClientProtocolException, IOException {
+        client = HttpClientBuilder.create().build();
+        response = client.execute(new HttpGet(URL_SECURED_BY_BASIC_AUTHENTICATION), context());
+
+        final int statusCode = response.getStatusLine().getStatusCode();
+        assertThat(statusCode, equalTo(HttpStatus.SC_OK));
+    }
+
+    @Test
+    public final void givenAuthorizationHeaderIsSetManually_whenExecutingGetRequest_thenSuccess() throws ClientProtocolException, IOException {
+        client = HttpClientBuilder.create().build();
+
+        final HttpGet request = new HttpGet(URL_SECURED_BY_BASIC_AUTHENTICATION);
+        request.setHeader(HttpHeaders.AUTHORIZATION, authorizationHeader(DEFAULT_USER, DEFAULT_PASS));
+        response = client.execute(request);
+
+        final int statusCode = response.getStatusLine().getStatusCode();
+        assertThat(statusCode, equalTo(HttpStatus.SC_OK));
+    }
+
+    @Test
+    public final void givenAuthorizationHeaderIsSetManually_whenExecutingGetRequest_thenSuccess2() throws ClientProtocolException, IOException {
+        final HttpGet request = new HttpGet(URL_SECURED_BY_BASIC_AUTHENTICATION);
+        final String auth = DEFAULT_USER + ":" + DEFAULT_PASS;
+        final byte[] encodedAuth = Base64.encodeBase64(auth.getBytes(Charset.forName("US-ASCII")));
+        final String authHeader = "Basic " + new String(encodedAuth);
+        request.setHeader(HttpHeaders.AUTHORIZATION, authHeader);
+
+        client = HttpClientBuilder.create().build();
+        response = client.execute(request);
+
+        final int statusCode = response.getStatusLine().getStatusCode();
+        assertThat(statusCode, equalTo(HttpStatus.SC_OK));
+    }
+
     // UTILS
 
     private final CredentialsProvider provider() {
@@ -74,4 +119,30 @@ public class HttpClientAuthLiveTest {
         return provider;
     }
 
+    private final HttpContext context() {
+        final HttpHost targetHost = new HttpHost("localhost", 8080, "http");
+        final CredentialsProvider credsProvider = new BasicCredentialsProvider();
+        credsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(DEFAULT_USER, DEFAULT_PASS));
+
+        // Create AuthCache instance
+        final AuthCache authCache = new BasicAuthCache();
+        // Generate BASIC scheme object and add it to the local auth cache
+        authCache.put(targetHost, new BasicScheme());
+
+        // Add AuthCache to the execution context
+        final HttpClientContext context = HttpClientContext.create();
+        context.setCredentialsProvider(credsProvider);
+        context.setAuthCache(authCache);
+
+        return context;
+    }
+
+    private final String authorizationHeader(final String username, final String password) {
+        final String auth = username + ":" + password;
+        final byte[] encodedAuth = Base64.encodeBase64(auth.getBytes(Charset.forName("US-ASCII")));
+        final String authHeader = "Basic " + new String(encodedAuth);
+
+        return authHeader;
+    }
+
 }